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Proceedings of the National Academy of Sciences
descrizione: PNAS. Beginning January 2002, PNAS research articles and papers published online before print in PNAS Early Edition are available only to paid subscribers for six months. All articles from 1990 through 2001 remain freely ...
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4.4 / 5.0, recensione di Sites Like Search
Lingua: English
PLOS ONE: an inclusive, peer-reviewed, open-access resource from the PUBLIC LIBRARY OF SCIENCE. Reports of well-performed scientific studies from all disciplines ...
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4.4 / 5.0, Lingua: English
Online publisher of free peer-reviewed scientific articles in all areas of medical research and biology. Although it is a for-profit publisher, it provides free ...
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4.4 / 5.0, Lingua: English
Publisher of a wide range of peer reviewed journals in the categories; Medical Sciences, Social Sciences, Biological Sciences and Physical Sciences.
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4.4 / 5.0, Lingua: English
A clear voice for science. Earth, space, human world. What to see in the sky tonight.
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4.4 / 5.0, Lingua: English
UIC
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4.5 / 5.0, Lingua: English
Tables of contents and abstracts of articles from journals in agricultural sciences, science and technology, health and social sciences, published in Africa.
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4.3 / 5.0, Lingua: English
Weekly magazine offers featured articles from the current issue along with special online-only features. Includes photo collection, archives, email newsletter and ...
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4.4 / 5.0, Lingua: English
EurekAlert! is an online science news service, sponsored by AAAS, the science society. It features health, science and technology news from leading research ...
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4.5 / 5.0, Lingua: English